8
System Fault
Vacon · NX All-in-One Application
What does 8 mean?
This fault indicates a general system malfunction or a defective internal component. Subcodes provide more specific details, such as issues with the charging switch (S7), lack of power to the driver card (S8), or communication problems within the power unit for transmission (S9), trip signals (S10), or measurement data (S11).
Source: Vacon NX All-in-One Application
Open Manual (Page 372)